I am putting together a nano/pico reef 2-10 gallons for my brother and was looking for a little clip on the back led or something similar. Something that will sustain zoas and mushrooms or better. He usually moves every year so I don't want to go overboard or put in anything that is more of a pain in the A for him but something he can enjoy watching. Hmm I should make a build suggestion post now, thanks for the idea!